Help setting up an IB 7.1 database

I tried with Firebird 1.0, 1.5 and 2.5, and ultimately I always get errors on the process, and the restore is terminated abnormally. I also tried with IB 9.0, and got similar problems.

My thinking is that it seems to be related to versioning. If I want to restore a IB 7.1 database, should I surely get a copy of Borland Interbase 7.1?? Is there any other server that should work with it?

What If I directly copy the IB, and try to register the database from there (without having a backup in the middle). May help?

If you think it should work with FB, I could tell you exactly the error messages.